61 Water can be made to boil without heating it, if the pressure acting on it is

Considerably decreased

62 The element that is most useful to man to reach the present stage of civilization is

Carbon

63 The three sensations that buds of tongue gives us are

Bitter, Salt, Sweet

64 Absolute Zero is a temperature of

– 273 C

65 The highest and lowest temperature that a Mercury thermometer can record is

357 C and 39 C

66 Astigmatism is a defect of the

Eyes or an eye lens

67 Newton is known for his researches on

Laws of gravitation

68 Malthus propounded the celebrated theory of

Population

69 Name the scientist whose Quantum theory form the basis of modern physics.

Max Planck

70 The energy that travels along a telephone line is

Electrical energy